Well, if it ran under server 2003, then the processor is not to blame, but possibly it could be the combination of processor / operating system.
If you need a dedicated server, all my systems work fine with game servers, and they are cheap too!

Looking for a game server? Visit fullfrag.com and pick one up as low as $2.50 / mo!

I will sell you one for $300, brand new, I order them in lots of 5 or more for a little discount.
Or if you want to buy one for $300, and then colo it on 1.5TB of 100mbps for $50 per month, I can do that too :3

Looking for a game server? Visit fullfrag.com and pick one up as low as $2.50 / mo!